I've been meaning to go through everything I've written and collect the mistakes. IIRC I was wrong about the low end of the age range here. It was also a mistake to advise people to work for an existing co for a couple years before starting their own.

Hopefully you can find the time to do this soon, it will be very helpful for all of us trying to become successful and change the world (or a piece of it) with our startups.